/*
 * Copyright 2019-present HiveMQ GmbH
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.hivemq.persistence;

import com.google.common.util.concurrent.ListenableFuture;
import com.hivemq.extension.sdk.api.annotations.NotNull;
import com.hivemq.extension.sdk.api.annotations.Nullable;

import java.util.List;

/**
 * @author Daniel Krüger
 */
public interface ProducerQueues {

    <R> @NotNull ListenableFuture<R> submit(@NotNull String key, @NotNull SingleWriterServiceImpl.Task<R> task);

    <R> @NotNull ListenableFuture<R> submit(int bucketIndex, @NotNull SingleWriterServiceImpl.Task<R> task);

    @NotNull
    <R> List<ListenableFuture<R>> submitToAllBucketsParallel(@NotNull SingleWriterService.Task<R> task);

    @NotNull
    <R> List<ListenableFuture<R>> submitToAllBucketsSequential(@NotNull SingleWriterService.Task<R> task);

    int getBucket(@NotNull String key);

    @NotNull
    ListenableFuture<Void> shutdown(@Nullable SingleWriterServiceImpl.Task<Void> finalTask);
}
